213250253 has 4 divisors (see below), whose sum is σ = 220603740. Its totient is φ = 205896768.

The previous prime is 213250237. The next prime is 213250259. The reversal of 213250253 is 352052312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61418569 + 151831684 = 7837^2 + 12322^2 .

It is a cyclic number.

It is not a de Polignac number, because 213250253 - 2⁴ = 213250237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213250259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676700 + ... + 3676757.

It is an arithmetic number, because the mean of its divisors is an integer number (55150935).

Almost surely, 2^213250253 is an apocalyptic number.

It is an amenable number.

213250253 is a deficient number, since it is larger than the sum of its proper divisors (7353487).

213250253 is an equidigital number, since it uses as much as digits as its factorization.

213250253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353486.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 213250253 is about 14603.0905290627. The cubic root of 213250253 is about 597.4430568447.

The spelling of 213250253 in words is "two hundred thirteen million, two hundred fifty thousand, two hundred fifty-three".